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ID number:769395
 
Author:
Evaluation:
Published: 19.02.2024.
Language: Latvian
Level: Elementary school
Literature: n/a
References: Not used
Time period viewed: 2021 - 2025 years
Extract

Kas ir purvs?
Purvs ir zemes virsmas nogabals, kam raksturīgs:

patstāvīgs mitrums
specifiska augu valsts
kūdras uzkrāšanās

Saskaņā ar kūdras atradņu klasifikāciju, purvainu vietu droši var saukt par purvu tad, ja tajā ir vismaz 30 centimetrus biezs kūdras slānis

Kā rodas purvi?
Ir divi galvenie purvu veidošanās veidi:
Sauszemes pārpurvošanās
Ūdenstilpju aizaugšana …

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